Viewing Station: MT-MS-14 : Missoula 4.4 W
May 13, 2007 - May 18, 20266,703 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.10"
May 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
0.87"
Departure from Normal
-0.77" : 11% of Normal
Year-To-Date: 5.69"
Jan 1 to May 18, 2026(138 of 138 days covered by obs)
NOAA Normal
4.49"
Departure from Normal
1.20" : 127% of Normal
Water Year-To-Date: 11.19"
Oct 1, 2025 to May 18, 2026(229 of 230 days covered by obs)
NOAA Normal
7.81"
Departure from Normal
3.38" : 143% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.88
1.01
-0.13
Feb
0.87
1.01
-0.14
Mar
0.76
0.86
-0.10
Apr
1.11
1.17
-0.06
May
1.50
1.72
-0.22
Jun
1.82
2.07
-0.25
Jul
0.82
0.82
0.00
Aug
0.76
0.81
-0.05
Sep
0.89
0.90
-0.01
Oct
1.16
1.19
-0.03
Nov
1.07
1.27
-0.20
Dec
1.09
1.11
-0.02
12.73
13.94
-1.21